| 摘要 |
<p>A flow control valve with device for indicating the status of a fluid, particularly for gas containers, which includes a body provided with an end on which a threaded shank is provided for hermetic coupling to a gas container, and a handwheel, a gas status indicator device being included within the handwheel, the device including a plunger that is constituted by a head and by a helical stem that is engaged in a cavity of a body that can rotate so that an axial movement of the plunger is matched by a rotation of the rotatable body, which has a visible portion that is marked so as to provide an indication of the status of the plunger, which can move, in contrast with a calibrated spring, between at feast one minimum position, in which the head abuts against a shoulder, due to the action of the calibrated spring, and a maximum position, in which the plunger abuts against an end of the rotatable body.</p> |
